| 3-(2,4-二羧基苯基)-2,6-二羧基吡啶原位脱羧构筑两个配位聚合物的结构及磁性 |
| Two Coordination Polymers Generated via in situ Decarboxylation of 3-(2,4-Dicarboxylphenyl)-2,6-dicarboxylpyridine: Structure and Magnetism |
|
| 摘要: 通过水热法合成了2个配位聚合物:[Cu(H2dpcp)2]n(1)和[Mn2(Hdpcp)2(H2O)2·2H2O]n(2)[H3dpcp=5-(2,4-二羧基苯基)-2-羧基吡啶],H3dpcp由3-(2,4-二羧基苯基)-2,6-二羧基吡啶(H4dpdp)原位脱羧生成.X-射线单晶衍射测得2个化合物都属于单斜晶系,化合物1结晶在P21/c空间群,a=0.639(13)nm,b=1.835(4)nm,c=1.115(2)nm,β=102.29(3)°,Z=2;化合物2结晶在C2/c空间群,a=3.126(6)nm,b=1.004(2)nm,c=1.080(2)nm,β=93.73(3)°,Z=4.化合物1以配体H2dpcp-桥连Cu(Ⅱ)形成一维链状结构.化合物2通过Hdpcp2-桥连Mn(Ⅱ)形成二维层状结构,并进一步通过氢键作用形成三维超分子结构.负的Weiss常数θ表明化合物2存在反铁磁耦合作用. |
| 关键词: 配位聚合物 原位脱羧 3-(2,4-二羧基苯基)-2,6-二羧基吡啶 磁性 |
| 基金项目: 国家自然科学基金(No.21071100)和辽宁特聘教授资助项目(No.2013204)资助项目 |
| Abstract: Two coordination polymers, [Cu(H2dpcp)2]n (1) and [Mn2(Hdpcp)2(H2O)2·2H2O]n (2) [H3dpcp=5-(2,4-dicarboxylphenyl)-2-carboxylpyridine] have been synthesized under hydrothermal conditions, and the H3dpcp ligand was formed in situ via decarboxylation of the initial 3-(2,4-dicarboxylphenyl)-2,6-dicarboxylpyridine (H4dpdp). Crystal structural analyses indicate that two complexes crystallize in the same monoclinic system, and space group P21/c for complex 1 with a=0.639(13) nm, b=1.835(4) nm, c=1.115(2) nm, β=102.29(3)°, Z=2, and space group C2/c for complex 2 with a=3.126(6) nm, b=1.004(2) nm, c=1.080(2) nm, β=93.73(3)°, Z=4. For 1, Cu(Ⅱ) were bridged by H2dpcp-ligands to form a 1Dchain structure. For 2, Mn(Ⅱ) were linked by Hdpcp2-ligands to form 2Dlayers and further extend to a 3Dstructure through the hydrogen bonding interaction. The negative value of θ shows the existence of antiferromagnetic coupling in 2. CCDC: 1021238, 1; 1021239, 2. |
| Keywords: coordination polymers in situ decarboxylation 3-(2,4-dicarboxylphenyl)-2,6-dicarboxylpyridine magnetism |
| 投稿时间：2014-10-13 修订日期：2014-11-09 |
| 摘要点击次数: 1723 |
| 全文下载次数: 1577 |
| 由立新,王淑菊,熊刚,丁茯,孙亚光.3-(2,4-二羧基苯基)-2,6-二羧基吡啶原位脱羧构筑两个配位聚合物的结构及磁性[J].无机化学学报,2015,31(2):323-328. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
